Articles by Keyword: Connectivity

Search results for Connectivity

We found 13 results for you
  1. Allozyme and mtDNA variation of white seabream <em>Diplodus sargus</em> populations in a transition area between western and eastern Mediterranean basins (Siculo-Tunisian Strait)

    Allozyme and mtDNA variation of white seabream <em>Diplodus sargus</em> populations in a transition area between western and eastern Mediterranean basins (Siculo-Tunisian Strait)

    Item type: Journal Article • Journal: African Journal of Marine Science
    To investigate the possible influence of the Siculo-Tunisian Strait on the genetic structure of white seabream Diplodus sargus, 13 polymorphic allozyme loci and a fragment of the cytochrome b mito-chondrial DNA were analysed. Allozyme data indicated a moderate but significant...
  2. High-latitude connectivity of the scleractinian coral <em>Acropora tenuis</em> in the south-western Indian Ocean, identified using nuclear intron and mitochondrial sequence data

    High-latitude connectivity of the scleractinian coral <em>Acropora tenuis</em> in the south-western Indian Ocean, identified using nuclear intron and mitochondrial sequence data

    Item type: Journal Article • Journal: African Journal of Marine Science
    All scleractinian corals in southern Africa occupy the high-latitude margins of their biogeographical range, with some straddling multiple biogeographical regions. Connectivity among these populations is essential to maintain genetic diversity, and thus their conservation value. Therefore, the aim of this...
  3. Shallow-water, nearshore current dynamics in Algoa Bay, South Africa, with notes on the implications for larval fish dispersal

    Shallow-water, nearshore current dynamics in Algoa Bay, South Africa, with notes on the implications for larval fish dispersal

    Item type: Journal Article • Journal: African Journal of Marine Science
    Nearshore currents play a vital role in the transport of eggs and larval stages of fish. However, little is known about their complexity and the implications for dispersal of fish larvae. The study describes the complexity of the shallow nearshore...
  4. Why do we need to integrate population genetics into South African marine protected area planning?

    Why do we need to integrate population genetics into South African marine protected area planning?

    Item type: Journal Article • Journal: African Journal of Marine Science
    South Africa is home to a wide variety of marine flora and fauna distributed over at least three biogeo-graphic provinces. Currently, 9% of the coastline is protected by ‘no-take’ marine protected areas (MPAs), but the distribution of MPAs is uneven...
  5. Stable isotope evidence of food web connectivity by a top predatory fish (<em>Argyrosomus japonicus</em>: Sciaenidae: Teleostei) in the Kowie Estuary, South Africa

    Stable isotope evidence of food web connectivity by a top predatory fish (<em>Argyrosomus japonicus</em>: Sciaenidae: Teleostei) in the Kowie Estuary, South Africa

    Item type: Journal Article • Journal: African Journal of Marine Science
    In this study, food web connectivity within the Kowie Estuary on the south-east coast of South Africa was evidenced by the trophic behaviour of the predominantly piscivorous Argyrosomus japonicus. We examined stable isotopes of carbon (δ13C) and nitrogen (δ15N) in...
  6. Exploring personality preferences in relation to psychological career resources among managerial staff in the Western Cape fast food industry

    Exploring personality preferences in relation to psychological career resources among managerial staff in the Western Cape fast food industry

    Item type: Journal Article • Journal: Journal of Psychology in Africa
    The study explored the relationship between individuals' personality preferences (as measured by the Myers-Briggs Type Indicator, Form M) and their psychological career resources (as measured by the Psychological Career Resources Inventory) and whether the personality types differed significantly in terms...
  7. Inferring the links between breeding and wintering grounds in a Palearctic– African migratory bird, the Great Reed Warbler, using mitochondrial DNA data

    Inferring the links between breeding and wintering grounds in a Palearctic– African migratory bird, the Great Reed Warbler, using mitochondrial DNA data

    Item type: Journal Article • Journal: African Zoology
    Understanding spatial connections between breeding and wintering populations is critical for developing sound conservation plans in migratory animals. However, for long-distance migratory songbird species wintering in sub-Saharan Africa, many of which are in a state of population decline, information on...
  8. A review of fiddler crabs (genus <em>Uca</em> Leach, 1814) in South Africa

    A review of fiddler crabs (genus <em>Uca</em> Leach, 1814) in South Africa

    Item type: Journal Article • Journal: African Zoology
    Fiddler crabs occur globally across tropical and subtropical coastal habitats including mangrove swamps, which are in decline worldwide. The genus has been well-studied in the Americas, Australia and Asia, whereas information on African species is scarce. This review summarises the...
  9. The role of waterbirds in the dispersal of freshwater cladocera and bryozoa in southern Africa

    The role of waterbirds in the dispersal of freshwater cladocera and bryozoa in southern Africa

    Item type: Journal Article • Journal: African Zoology
    It has long been presumed that waterbirds disperse the propagules of aquatic organisms. However, it is only in recent years that this claim has been empirically explored and little is still known about waterbird-mediated dispersal in southern Africa. Aquatic invertebrates...
  10. Biophysical models of larval dispersal in the Benguela Current ecosystem

    Biophysical models of larval dispersal in the Benguela Current ecosystem

    Item type: Journal Article • Journal: African Journal of Marine Science
    We synthesise and update results from the suite of biophysical, larval-dispersal models developed in the Benguela Current ecosystem. Biophysical models of larval dispersal use outputs of physical hydrodynamic models as inputs to individual-based models in which biological processes acting during...